Jiwon Youm, M.D.
Vascular & Interventional Radiology Physician · Walnut Creek, CA
Jiwon Youm, M.D. is a vascular & interventional radiology physician with a practice address in Walnut Creek, California, and NPI 1265876478, issued on Apr 18, 2013. Check the license (California A138033, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jiwon Youm
- Credential
- M.D.
- Primary taxonomy
- Vascular & Interventional Radiology Physician 2085R0204X
- License number
- A138033 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2125 Oak Grove RD Ste 200, Walnut Creek, CA 94598
- Phone
- (252) 967-1509
- Enumerated
- Apr 18, 2013
- Record last updated
- Dec 12, 2023
- Medicare enrollment
- Enrolled (PECOS I20220627002983); may accept Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest vascular & interventional radiology physician records → All 599 in California → Look up another NPI →
Also registered at 2125 Oak Grove RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jimmy Cardoza, M.D.Diagnostic Radiology Physician1508893710
- Huijia ChenDiagnostic Radiology Physician1225458490
- George Chu, MDDiagnostic Radiology Physician1952340465
- Chul Chung, M.D.Diagnostic Radiology Physician1033552773
- Jeffrey Goletz, M.D.Diagnostic Radiology Physician1699098145
Verify Jiwon Youm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A138033Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $70.49
2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 3,457 providers of this specialty with any payment received $7,206.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Bay Imaging Consultants Medical Group IncWalnut Creek, CA
- John Muir Magnetic Imaging CenterWalnut Creek, CA
- John Muir Trauma Physicians Billing ServiceWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jiwon Youm among 599 vascular & interventional radiology physician records in California
Jiwon Youm, M.D. is one of 599 vascular & interventional radiology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 73% of them.
- NPI issued2013 · 73% of these records are older, 23% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2013 · median 2007 among the 497 with a school on file
- Record last updated2023 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular & Interventional Radiology Physician providers in California
There are 599 vascular & interventional radiology physician records in California.
All 599 in California → Every provider in Walnut Creek → Vascular & Interventional Radiology Physician nationwide →
The 8 vascular & interventional radiology physician records with the nearest ZIP codes
- Ira Finch, M.D.Walnut Creek, CA 945981366472912
- Erik Gaensler, MDWalnut Creek, CA 945981376598474
- Patrick Gonzales, M.D.Walnut Creek, CA 945981669779179
- Richard Hong, M.D.Walnut Creek, CA 945981487805362
- Robert Kim, M.D.Walnut Creek, CA 945981477598506
- Daniel Kim, M.D.Walnut Creek, CA 945981295880706
- Christopher Lee, MDWalnut Creek, CA 945981083826879
- David Woo, M.D.Walnut Creek, CA 945981407988272
Common questions
What is Jiwon Youm, M.D.'s NPI number?
Jiwon Youm, M.D.'s National Provider Identifier (NPI) is 1265876478, issued on Apr 18, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Jiwon Youm, M.D. located?
The NPPES record lists a practice address at 2125 Oak Grove RD Ste 200, Walnut Creek, CA, 94598. Phone: (252) 967-1509. Providers update this record themselves, so call before visiting.
How can I verify Jiwon Youm, M.D.'s license?
NPPES lists California license number A138033, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Jiwon Youm, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.